Latch mechanism.



' No. 833,266. PATENTED' OCT. 1a, 1906.

H. G. VOIGHT. LATCH MECHANISM. I

APPLICATION FILED JULY 19, 1905.

UNITED sra rns PATENT OFFICE; I

HENRY G. VOlGHT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO RUSSELL 8;ERWIN MANUFACTURING COMPANY, OF NEW' BRIT- AIN, CONNECTICUT, ACORPORATION OF CONNECTICUT.

LAUTCH MECHANISM.

Specification of Letters Patent.

Patented Oct. 16, 1906.

Application filed July 19,1905- Serial No. 270,306.

1'0 ML whom it may concern:

Be it known that I, HENRY G. Vorer-rr, a

, citizen of the United States, residing at New Britain, Hartfordcounty, State of Connectidoor is open, so that no part of the latch-boltwill protrude sufficiently to admit of anything catching thereon andbecoming torn. It not infrequently happens that the wearing-apparel ofpersons in passing an open door is caught and torn by the protrudinglatch-bolt. By my invention this danger is entirely obviated.

In the accompanying drawings, Figure 1 is a plan view, partly insection, of a portion of a lock or latch fitted with my improvedholdback mechanism. Fig. 2 is a view of the parts shown in Fig. 1 infull, looking down relatively to the position assumed in Fig. 1. Fig. 3is a fragmentary view of certain parts shown in Fig. 1, the holdbackmechanism being shown in a different position. Fig. 4 is a sectionaldetail view showing the operating member.

A is a knob.

B is a latch bolt or head.

C is an end plate through which the latchbolt B is capable ofreciprocation.

D is a latch-slide.

D is a connection between the latch-slide and the bolt B.

E is a roll-back.

F is a spring arranged to normally project the bolt B outwardly.

G is a retaining device arranged to engage with a suitable stop shoulderor projection on the latchbolt B when said retaining device is in oneposition and be freed thereof when in another position. This retainingdevice is preferably formed of spring metal secured at one end G to apart of the end plate C, while another part G is arranged to engage thebolt, while still another part G is arranged to be engaged by theoperating member H. This operating member is preferably in the form of apin, the head of which projects laterally of the lock and is capable ofmovement in a line at right angles to the line of movement of thelatch-bolt B.

J represents the stop-bead of a doorcasing. The position of theoperating device H is such that when the door is closed it willencounter this stop-bead J and stand in the position shown in Fig. 1,the opposite end of said operating device moving the retaining member Gso as to free it from the bolt B. In this position it will be seen thebolt B may be projected freely outwardly under the influence of springF, so that it will stand in a position to engage with the keeper-plate,(illustrated conventionally at J such keeper-plates being well known.When the user turns the knob A and retracts the bolt B and opens thedoor, the operating device H assumes the position indicated in Fig. 3,and the retaining member G also assumes said position wherein it willengage the latch-bolt. K represents the shoulder engaged by saidretaining member. (See Fig. 3.) In this particular arrangement it willbe observed that nothing stands beyond the face-plate C on the door whenthe latter is open. danger of tearing the clothes of passers-by isremoved. Another and substantial advan tage is that the danger ofbattering up the strike-plate J when the door is closed is avoided,since the bolt B is not releaseduntil the door is practically closed, atwhich time said latch-bolt is released. and will spring forward toengage in the recess in said strikeplate.

Having thus described my invention, what I claim is I 1. In a latchmechanism, a frame having a plate adapted to the side of the door andanother plate adapted to the edge of the door with a vertical notch atthe junction between said plates, a bolt protruding through the end.plate, a rotatableknob carried by the side plate, operative means ofconnection between said knob and said bolt, means for automaticallyretaining said bolt when retracted by Consequently all a said knob, anda projecting device guarded bolt when retracted, and means forreleasingin said notch for releasing said retaining sald retaining meansautomatically, said re- IO means. leasing means having a portionextending 2. In a latch mechanism, a frame having a into and guarded insaid notch.

side plate and anend plate rigid therewith, HENRY Gr. VOIGHT.

and having a notch at the end of the side Witnesses:

plate, a spring-pressed bolt carried by said M. S. WIARD,

frame, means for automatically retaining the l C. E. RUSSELL.

